SpaceGroupsPointGroup( P )
SpaceGroupsPointGroup( P, normalizer elements )
where P is any finite subgroup of GL(d,Z), returns a list of all space groups with point group P, up to conjugacy in the full translation group of Euclidean space. All these space groups are returned as CrystGroups in standard representation. If a second argument is present, which must be a list of elements of the normalizer of P in GL(d,Z), only space groups inequivalent under conjugation with these elements are returned. If these normalizer elements, together with P, generate the full normalizer of P in GL(d,Z), then exactly one representative of each space group type is obtained.
GAP 3.4.4